Journal article
Observation of the heavy baryons Σb and Σb*
- Abstract:
- We report an observation of new bottom baryons produced in pp̄ collisions at the Tevatron. Using 1.1fb-1 of data collected by the CDF II detector, we observe four Λb0π± resonances in the fully reconstructed decay mode Λb0→Λc+π-, where Λc+→pK-π+. We interpret these states as the Σb(*) ± baryons and measure the following masses: mΣb+=5807.8-2.2+2. 0(stat.)±1.7(syst.)MeV/c2, mΣb-=5815.2±1.0(stat.)±1. 7(syst.)MeV/c2, and m(Σb*)-m(Σb)=21.2-1.9+2.0(stat.)-0.3+0. 4(syst.)MeV/c2. © 2007 The American Physical Society.
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- Publisher copy:
- 10.1103/PhysRevLett.99.202001
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Authors
Bibliographic Details
- Journal:
- Physical Review Letters
- Volume:
- 99
- Issue:
- 20
- Publication date:
- 2007-11-12
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- URN:
-
uuid:c9cdaa38-a3a7-4603-9179-4ca0a10b1b2e
- Source identifiers:
-
117348
- Local pid:
- pubs:117348
Item Description
- Language:
- English
Terms of use
- Copyright date:
- 2007
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